Simple Matrix Extraction

Jan 9, 2014 11:19 AM(7577 views)

Quick question about extracting a single column from a large matrix into a submatrix. Just as an example below: I want extract the second column from matrix P ( I want to pull out 2,5,8) and place it into a submatrix called A. However when I try to attempt it in this way, I am getting invalid matrix token error.

P=[1 2 3, 4 5 6, 7 8 9];

for(i=1,i<=3,i = i + 1,

A = [P[i,2]];

);

Should be really simple, but for some reason it is stumping me. Thanks for the help!